Where does “eyewitness” come from?

Eyewitness comes from Middle English eyewitnes, from Old English witnes, from Proto-Germanic augô and an agent noun formation, ultimately deriving from Proto-Indo-European roots relating to seeing and perception.

eyewitness (English): Someone who sees an event and can report or...

Definitions

  1. Someone who sees an event and can report or...

Ancestry of “eyewitness”, step by step

eyewitness traces back through two separate lines of ancestry.

via English Witness

StepLanguageWordMeaning
1EnglishWitnessJehovah's Witness
2English-nessAppended to adjectives to form nouns meaning "the...
3Middle English-nesseAffixed to adjectives to form abstract nouns...
4Old English-nesUsed to form abstract nouns, usually from...
5Proto-West Germanic-nassīUsed to form abstract nouns, usually from...
6Proto-Germanic-inassuz-ness
7Proto-West Germanic-ness, -th
8Proto-Germanic-į̄-th
9Proto-Indo-European-íh₂
10Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via English Eye

StepLanguageWordMeaning
1EnglishEyeA place name
2English-someCharacterized by some specific condition or...
3Middle English-somsome; having a specific quality
4Old Englishsumsome
5Proto-West Germanic*sumsome
6Proto-Germanicsumazsome (one), a certain (one)
7Proto-Indo-Europeansem-together, one
Every word from Proto-Indo-European -h₂Every word from English -nessEvery word from Old English -nes